I ordered the triple interface, 320GB Hitachi 5400rpm drive late Saturday night and received it this morning. It would have been here yesterday if not for the new UPS driver... I just wanted to say that the quality of the drive is excellent and that it looks great. I've had a few hiccups that I'm still trying to diagnose, but I think they were PC related. I'll be stressing it with some sustained writes to see if it happens anymore. When I ordered, I had just caught the end of the Hitachi promotion, and this drive was eligible for a $30 rebate. I should have saved the PDF before it was over (the 21st) since it was nowhere to be found today. Fortunately, Larry has some good guys working on the chat support. Attention, Larry - Give this guy a raise/gold star/pat on the back/promotion for knowing what he was doing and being helpful, unlike 90% of all other chats I've used. Code: Eric: Where can I find the rebate form for the Hitachi-based Mercury On-The-Go drives? You are now speaking with Dave Jones of Customer Service 7AM-8PM CST. Dave Jones: Hi Eric, what is the item number for the on the go? Eric: OWCMS8U5320HB8 Dave Jones: Thanks! One moment, I will be right back Eric: Alright. Dave Jones: Thanks Eric - what was the date of your purchase? Eric: July 19th. Dave Jones: Oops - if the part number you provided is exactly what you purchased, there is a Samsung in there, not a Hitachi Eric: Let me check...I just pasted that from the site. It is a hitachi drive in it... Eric: I guess the stock online changes. Eric: My invoice has: OWCMS8U5320HB8 Eric: Which is the same thing... Eric: I can see the Hitachi label on the drive. Eric: I can provide photo proof if necesary. Eric: necessary* Dave Jones: That won't be needed, but, if you can see the model number of the drive in the enclosure, that would help tremendously Eric: Sure. It that the line that has "HDD" or "Model" before it? Eric: HDD: 5k320-320 Model: HTS543232L9A30 0 Dave Jones: There we go! Thanks! Eric: The OWC number did match on the rebate when I looked at it before, by the way. Dave Jones: Is it alright if I send it to you via email? EMAIL ADDRESS Eric: I just didn't save it. ;) Eric: Yep. Dave Jones: Fantastic - I will be sending the form as a PDF file, in about 5 minutes Eric: Okay. Thanks a lot. Dave Jones: No problem! happy to help! email coming shortly! Your party has left this session. The drive will be headed into a Montevina Macbook Pro and the stock drive will find itself trapped in the On-The-Go enclosure, purely for Time Machine. I'd definitely purchase from OWC again, whether this drive ends up having an issue or not.